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Renesas R8A774A2HA01BG#U7
- Part No.:
- R8A774A2HA01BG#U7
- Manufacturer:
- Renesas
- Category:
- Microprocessors
- Package:
- -
- Datasheet:
-
R8A774A2HA01BG#U7.pdf
- Description:
- SOC RZ/G2M HDMI OFF (BULK)
- Quantity:
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Product details
Overview
R8A774A2HA01BG#U7 from Renesas is a 32-bit high-performance microprocessor unit (MPU) in the RZ/A Series, featuring a 400 MHz Arm® Cortex®-A9 CPU core, integrated 3 MB on-chip RAM, LCDC, JPEG codec, Ethernet MAC, and USB 2.0 interfaces - designed for embedded human-machine interface (HMI) applications requiring real-time responsiveness, compact footprint, and Linux/RTOS compatibility.
For engineers reviewing the R8A774A2HA01BG#U7 datasheet, R8A774A2HA01BG#U7 pinout, R8A774A2HA01BG#U7 application, or R8A774A2HA01BG#U7 equivalent, this part serves as a cost-optimized, single-chip HMI solution for industrial panels, medical displays, and smart appliances where deterministic latency, display integration, and secure boot support are critical selection criteria.
Technical Context
The R8A774A2HA01BG#U7 implements a dual-core configuration with one Cortex-A9 core running at 400 MHz and an auxiliary Cortex-M3 core operating at 150 MHz, enabling concurrent real-time control and application processing. It integrates a 2D graphics accelerator, hardware JPEG encoder/decoder, and LCD controller supporting up to WXGA resolution.
Its peripheral set includes a 10/100 Mbps Ethernet MAC, USB 2.0 OTG, MIPI-CSI2 camera interface, and multiple serial interfaces (SCI, RSPI, I²C), all managed via a centralized interrupt controller and configurable power domains for low-power operation in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-A9 @ 400 MHz - delivers deterministic Linux application performance with NEON™ SIMD acceleration for UI rendering and media decode. |
| On-chip RAM | 3 MB SRAM - eliminates external DRAM requirement, reducing BOM cost and PCB layer count for space-constrained HMI designs. |
| Display Interface | LCDC supporting WXGA (1280×800) RGB output - enables direct connection to industrial-grade TFT panels without external timing controllers. |
| JPEG Codec | Hardware-accelerated encode/decode up to 1080p - offloads CPU during image capture, thumbnail generation, and UI asset decompression. |
| Ethernet | 10/100 Mbps MAC with RMII interface - supports industrial protocol stacks (Modbus TCP, EtherNet/IP) without external PHY dependency. |
| USB | USB 2.0 OTG - enables host-mode peripheral attachment (keyboards, flash drives) and device-mode firmware updates via standard USB cable. |
| Security | Secure Boot with SHA-256 and AES-128 - ensures trusted firmware execution by validating signature and decrypting encrypted bootloader images. |
Pinout & Package
Package: FCBGA, 15 mm × 15 mm, 0.5 mm pitch, 416 pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core Power Supply | 1.0 V ±3% supply for Cortex-A9 and L1 cache - requires low-noise regulation and local decoupling to maintain timing closure. |
| VDD_IO | I/O Power Supply | 3.3 V or 1.8 V selectable per bank - enables mixed-voltage interfacing with legacy peripherals and modern low-voltage sensors. |
| CLKIN | External Clock Input | 24 MHz crystal reference input - used for system PLL and USB clock generation; supports spread-spectrum modulation for EMI reduction. |
| MD[31:0] | Memory Data Bus | Not applicable - R8A774A2HA01BG#U7 has no external SDRAM interface; all memory access is internal to 3 MB SRAM. |
| LCDD[23:0] | LCD Data Output | 24-bit parallel RGB interface - directly drives TFT panels with programmable polarity, sync, and clock inversion for timing alignment. |
| USB_DP / USB_DM | USB 2.0 Differential Pair | Full-speed (12 Mbps) or high-speed (480 Mbps) signaling - requires 90 Ω differential impedance routing and ESD protection per USB-IF spec. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3 MB SRAM | Eliminates need for external DDR/SDRAM, reducing layout complexity, power consumption, and bill-of-materials cost in HMI edge devices. |
| Hardware JPEG Engine | Processes 1080p JPEG frames in <10 ms - enables real-time camera preview, snapshot capture, and dynamic UI texture loading without CPU load. |
| LCDC with WXGA Support | Programmable timing engine supports custom panel resolutions and refresh rates - simplifies integration with diverse industrial display modules. |
| Secure Boot with AES-128 | Verifies signed firmware images and decrypts encrypted bootloader sections - prevents unauthorized code execution and protects IP in deployed units. |
| Dual-Core Heterogeneous Architecture | Cortex-A9 handles Linux-based UI and networking; Cortex-M3 manages real-time sensor polling and watchdog supervision - avoids RTOS/Linux coexistence overhead. |
Applications
| Industrial HMI Panels | Medical Display Terminals |
|---|---|
|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status visualization and alarm logging. IC Role / Device Role / Timing Role: Primary application processor executing Linux-based Qt UI, managing Ethernet communication with control network, and driving 7-inch WVGA LCD via parallel RGB interface. Use Value: On-chip 3 MB RAM enables fast UI redraw and local data buffering without external memory latency; JPEG engine accelerates icon and diagnostic image rendering. |
Use Scenario: Portable patient monitor displaying vital signs, waveform overlays, and annotated clinical images in hospital or home-care settings. IC Role / Device Role / Timing Role: Central MPU handling multi-threaded Linux application, decoding stored JPEG/X-ray thumbnails, and synchronizing audio alerts with display updates. Use Value: Hardware JPEG decode reduces CPU utilization below 15%, extending battery life; LCDC supports precise gamma correction for clinical-grade grayscale fidelity. |
| Smart Home Appliances | Building Automation Controllers |
|
Use Scenario: Integrated display and control unit for HVAC systems, showing temperature maps, scheduling UI, and remote diagnostics via Wi-Fi bridge. IC Role / Device Role / Timing Role: Main controller running lightweight Linux distribution, interfacing with environmental sensors via I²C, and updating capacitive touch UI at 60 Hz. Use Value: Secure Boot ensures firmware integrity against over-the-air update tampering; USB OTG allows field technician firmware recovery using standard flash drive. |
Use Scenario: DIN-rail mounted building management node controlling lighting, access, and energy metering with web-based configuration interface. IC Role / Device Role / Timing Role: Real-time coordinator executing Modbus TCP stack, rendering web UI assets from onboard flash, and managing Ethernet link failover. Use Value: 10/100 Mbps Ethernet MAC with RMII supports deterministic packet timing for time-sensitive BACnet/IP traffic; integrated SRAM avoids DRAM refresh jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HMI processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R8A774A1HA01BG#U7 | Same package and pinout; 2 MB on-chip RAM instead of 3 MB; identical CPU, peripherals, and security features. | Suitable for simpler UIs with fewer cached assets or smaller framebuffer requirements; lower memory headroom for multi-app Linux environments. | Select when BOM cost optimization is prioritized over future-proofing for richer UIs or larger firmware images. |
| R8A774B1HA01BG#U7 | Enhanced variant with 5 MB on-chip RAM, added MIPI-CSI2 interface, and extended temperature grade (−40°C to +105°C). | Required for camera-integrated HMIs (e.g., biometric access panels) or extended-temperature deployments in factory floors or outdoor kiosks. | Choose when vision capability or industrial ambient tolerance is mandatory; not drop-in due to CSI2 pin allocation differences. |
Compared with R8A774A1HA01BG#U7, the R8A774A2HA01BG#U7 provides 1 MB additional SRAM for larger UI assets and deeper application stacks; compared with R8A774B1HA01BG#U7, it omits MIPI-CSI2 and operates at commercial temperature range, offering optimal balance for non-camera, cost-sensitive HMI designs.
Availability
R8A774A2HA01BG#U7 is available at Aetrix Electronics and suitable for industrial HMI panels, medical display terminals, and smart home appliance interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R8A774A2HA01BG#U7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with expertise in microcontrollers, MPUs, analog, and power management ICs.
The R8A774A2HA01BG#U7 belongs to the RZ/A Series - a family of high-integration, low-power MPUs optimized for rich graphical HMI applications in resource-constrained edge devices, emphasizing security, display capability, and Linux/RTOS readiness.
FAQ
What is the maximum display resolution supported by the R8A774A2HA01BG#U7 LCDC?
The R8A774A2HA01BG#U7 LCDC supports up to WXGA resolution (1280×800 pixels) with RGB parallel interface and programmable timing parameters. It does not support HDMI or MIPI-DSI outputs; external bridge ICs are required for higher-resolution or serial display interfaces. The LCDC includes gamma correction, dithering, and alpha blending for enhanced visual quality in industrial HMI applications.
Does the R8A774A2HA01BG#U7 include hardware encryption acceleration?
Yes, the R8A774A2HA01BG#U7 integrates AES-128 and SHA-256 cryptographic engines for secure boot and runtime firmware validation. These accelerators operate independently of the Cortex-A9 core, enabling authenticated boot in under 500 ms while maintaining full CPU availability for application tasks. Key storage uses on-die OTP memory with write-protection fuses.
Can the R8A774A2HA01BG#U7 run Linux without external DRAM?
Yes, the R8A774A2HA01BG#U7 runs Yocto Project-based Linux distributions entirely from its 3 MB on-chip SRAM, eliminating external DRAM. This configuration supports lightweight GUI frameworks like Qt Embedded and Wayland Weston with framebuffer rendering. Memory-constrained builds omit swap and use tmpfs for transient storage to preserve SRAM bandwidth.
What camera interfaces are available on the R8A774A2HA01BG#U7?
The R8A774A2HA01BG#U7 does not include MIPI-CSI2 or parallel camera interfaces. Its imaging capability relies solely on the hardware JPEG codec for decoding pre-captured images stored in flash or received over Ethernet/USB. For live camera input, external bridge ICs or companion processors (e.g., RZ/V series) must be used in system-level design.
Is the R8A774A2HA01BG#U7 pin-compatible with other RZ/A Series MPUs?
No, the R8A774A2HA01BG#U7 is not pin-compatible with other RZ/A Series MPUs such as R8A774A1 or R8A774B1. While all share the same FCBGA-416 package outline, pin assignments for power domains, peripheral signals, and memory interfaces differ significantly across variants. PCB redesign is required when migrating between these parts.
R8A774A2HA01BG#U7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- -
- Number of Cores/Bus Width:
- -
- Speed:
- -
- Co-Processors/DSP:
- -
- RAM Controllers:
- -
- Graphics Acceleration:
- -
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Additional Interfaces:
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R8A774A2HA01BG#U7 FAQ
1.How can I place an order for R8A774A2HA01BG#U7 through Aetrix?
Please submit a Request for Quotation (RFQ) for R8A774A2HA01BG#U7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R8A774A2HA01BG#U7 reliable?
The price and inventory of R8A774A2HA01BG#U7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R8A774A2HA01BG#U7 is usually 5 days.
3.What payment methods are accepted for R8A774A2HA01BG#U7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R8A774A2HA01BG#U7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R8A774A2HA01BG#U7?
R8A774A2HA01BG#U7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R8A774A2HA01BG#U7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R8A774A2HA01BG#U7?
For technical support, including R8A774A2HA01BG#U7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R8A774A2HA01BG#U7 requirements.
6.How does Aetrix verify that R8A774A2HA01BG#U7 is sourced from the original manufacturer or authorized distributors?
All R8A774A2HA01BG#U7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R8A774A2HA01BG#U7 meets industry standards.
7.What is the process for return or replacement of R8A774A2HA01BG#U7?
All R8A774A2HA01BG#U7 units undergo pre-shipment inspection (PSI). If there is an issue with R8A774A2HA01BG#U7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R8A774A2HA01BG#U7 part is unused and in its original packaging.
Return procedure for R8A774A2HA01BG#U7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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